Patents by Inventor Raymond J. Belanger

Raymond J. Belanger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Aqueous spray-coating process
    Patent number: 5047258
    Abstract: A process for spray-coating tablets and the like utilizing only an acrylate enteric polymer and plasticizer in water is disclosed. The process can be practiced on a commercial scale and requires no antiadherent in the coating formulation. The process comprises providing inlet air having a dew point below about 10.degree. C. and a temperature between 35.degree. and 60.degree. C.
    Type: Grant
    Filed: December 4, 1990
    Date of Patent: September 10, 1991
    Assignee: Sterling Drug Inc.
    Inventors: Raymond J. Belanger, Gregg Stetsko, Shrikant N. Pagay
  • Easily-swallowed, powder-free and gastric-disintegrable aspirin tablet thinly-coated with hydroxypropyl methylcellulose and aqueous spray-coating preparation thereof
    Patent number: 4302440
    Abstract: A method for preparing an easily-swallowed, powder-free, gastric-disintegrable and thinly-coated aspirin tablet, which does not have the characteristic aspirin taste, does not produce the esophageal discomfort of an uncoated aspirin tablet and does not disintegrate in the stomach materially slower than the uncoated aspirin tablet, which comprises aqueous spray-coating hydroxypropyl methylcellulose onto all exterior surfaces of an aspirin tablet, the amount of hydroxypropyl methylcellulose being between 0.5 and 2.0 parts by weight per 100 parts by weight of the aspirin tablet.
    Type: Grant
    Filed: July 31, 1980
    Date of Patent: November 24, 1981
    Assignee: Sterling Drug Inc.
    Inventors: Phillip M. John, Raymond J. Belanger, Myron Paikoff